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Vulnerability: MS09-051 - Critical Vulnerabilities in Windows Media Runtime Could Allow Remote Code Execution (975682)
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| Details | |
|---|---|
| Vulnerability name/brief description | MS09-051 - Critical Vulnerabilities in Windows Media Runtime Could Allow Remote Code Execution (975682) |
| CVE/CAN name | CVE-2009-0555, CVE-2009-2525 |
| Vendor threat level | Critical |
| SophosLabs threat level | Medium |
| Solution | |
| Vendor description | This security update resolves two privately reported vulnerabilities in Windows Media Runtime. The vulnerabilities could allow remote code execution if a user opened a specially crafted media file or received specially crafted streaming content from a Web site or any application that delivers Web content. |
| SophosLabs comments | Media file formats are a common target of malware authors due to their increased liklihood of being passed around amongst friends via email or file sharing neworks. The risk to the corporate environment largely depends on the computing practices of employees and the IT restrictions put in place by system administrators but is thought to be lower than that of home users. Although Microsoft have stated that CVE-2009-0555 has been publically disclosed we are yet to see any examples of attacks through malware, and this has been a contributing factor in assigning the SophosLabs threat level of medium. We advise users to apply this patch at their earliest convenience. |
| SophosLabs testing result | N/A |
| Currently known exploits | At the time of writing SophosLabs have not observed any malware attempting to exploit this vulnerability. Should this situation change samples will be analyzed and we will take action as necessary. |
| First sample seen | N/A |
| Discovery date | 13 October 2009 |
| Affected software | DirectShow WMA Voice Codec, Windows Media Audio Voice Decoder, and Audio Compression Manager on Microsoft Windows 2000 Service Pack 4 *Windows Server 2008 Server Core installation is not affected. |
| References | http://www.microsoft.com/technet/security/Bulletin/MS09-051.mspx |
| Credits | Microsoft MAPP |
| Revisions | 14 October 2009 - initial analysis written |
Explanation of terms
Vulnerability Name/Brief Description:
Vendor identifier plus a brief description of the type of attack.
CVE/CAN Name:
Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.
Vendor Threat Level:
Threat level assigned by the vendor
SophosLabs Threat Level:
Threat level assigned by SophosLabs
- LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
- MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
- HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
- CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.
Solution:
Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.
Vendor Description:
Summary of the cause and potential effect of the vulnerability provided by the vendor.
SophosLabs Comments:
SophosLabs' opinions and observations of the vulnerability in question.
SophosLabs Testing Result:
Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.
Currently Known Exploits:
List of identities for known exploits, if applicable.
First Sample Seen:
Date of the first sample seen by SophosLabs.
Discovery Date:
Date of the earliest known publically disclosed advisory.
Affected Software:
Vulnerable platforms and software versions.
If you need more information or guidance, then please contact technical support.
- Article ID: 64652
- Created: 14 Oct 2009
- Last updated: 14 Oct 2009
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